Wire joining



A. 'L. ROSENMUND WIRE JOINING Filed April 23, 1929 2 Sheets-Sheet l F HH EN l INVENTOR 61 v M A T zORNEY Sept. 8, 1931.

Sept. 8, 1931. A. L. ROSENMUND 1,822,542 7 WIRE JOINING Filed April 23. 1929 2 Sheets-Sheet 2 INVENTOR ATTORNEY 5414 4. FM, M4

Patented Sept. 8, 1931 UNITED STATES PATENT OFFICE. A

ALFRED,L. ROSENMUND, F ROCKAWAY BOROUGH, NEW JERSEY, ASSIGNOR TO STAPLING MACHINES 00., A CORPORATION OF DELAWARE WIRE JOINING Application filed April 23, 1929.

This invention relates to wire joining and to methods of and tools or devices for use in joining wires, wire bindings, or wire ties on or about boxes, crates, packages, bales,

bundles, or the like.

Among other objects, the invention has in view the production of a strong eflicient joinder of wire ends, and an efficient tool or device for making such a joinder.

The invention will be clearly understood from the following description of one illustrative joinder and one illustrative tool and method for producing the same.

In the drawings:

Figure 1 is a side elevation of the illustrative tool.

Figure 2 is an enlarged top plan View of the nose of the tool showing the wire receiving and gripping devices.

Figure 3 is a sectional view taken on the line 3-3 of Figure 2 and showing, in dotted lines, the wire confining spring latch in open position.

Figure 4 is a sectional view taken on the 25 line 44 of Figure 2.

Figure 5 is a sectional view taken on the line 5-5 of Figure 2.

Figure 6 is a perspective view of a corner portion of a wire bound box, the wire ends 3 on the lid and front sideof which are to be joined to complete the continuity of the wire binding.

Figure 7 is a perspective view illustrating the use of the tool in oining the wire ends.

Figure 8 is a perspective of the box corner showing the completed joinder of the wire ends.

Figure 9 is an enlarged view of the completed joinder and showing, in section, the position of the nose of the tool upon completion of the twisting operation.

Figure 10 is an enlarged perspective view of the completed joinder showing how the twist is disposed beneath the lower wire which has been drawn around and over the twist.

The illustrative tool comprises a twisting head 1 carried by a shank 2 to which a brace 3 may be attached for convenience in turning the tool.

Serial No. 357,431.

described in U. S. patent to Davidson, No.

1,453,446, of May 1, 1923, reference to which is hereby made for a detailed description of such actions.

As best shown in Figure 3, a spring latch 7 may be provided and to confine the wire strands in said bore during the twisting operation. Latch 7 is heldby a pin 8 in a groove 9 formed in the outer surface of the head 1'. Latch 7 is moved from its closed position (shown in full lines in Figure 3) to its open posit-ion (shown in dottedlines in Figure 3) by pressing the wire strands into the slot 5 and against the upper surface of the latch 7. When the wire strands have been forced past latch 7, it snaps back into closed position.

The slot 5 facilitates the operation of the tool. Heretofore, the wire strands were inserted endwise into the bore between the gripping members 6. Such an endwise insertion of the wire strands often caused considerable delay, especially if the strands happened to be bent or crimped.

The nose of the head 1 is preferably tapered as at 10 to permit the nose to assume a position between the lower strand of wire and the box side and to dispose the twist under or partially under said strand of wire. It has been found in practice that when the tool is held at an angle oblique to the perpendicular of the box side, the turning of the head will form a twist beneath the lower strand of wire and will draw the lower strand of wire over and about the twist as shown in in Figure 10, thereby producing a knotted joint having a tendency to tighten under strain and closely approximating the tensile strength of the wire itself.

The method of joining the wire ends and the operation of the tool are best shown in Figures 6 to 10 inclusive. The wire ends projecting from the box, as shown in Figure 6, are pressed into slot 5, past latch 7 and into bore 4; latch 7 snapping over the wires and confining them in the bore. ing may be done by the thumb of the operator. The tool is then preferably held at an angle oblique to the perpendicular of the box side and rotated a number of times until the twist is completed and the wires severed at the point. where they are gripped by the members 6. During the turning movement the twist forms under the lower strand of wire which is drawn upward and around the twist forming the knotted joint shown in Figure 10.

Among other advantages the invention produces a strong and efficient oinder which has a tendency to tighten under strain rather than to unravel, and an efficient and eco nomical tool for producing such a joinder.

It will be understood that the invention is not limited to the specific embodiment shown herein for illustration and that the inventive features of the illustrative tool may be e1nbodied in a power driven tool or machine without departing from the invention.

I claim 1. A tool for joining package wires by intertwisting comprising a twisting head bored and slotted to receive the wires to be joined, a wire gripping member extending into the bore at either side oi the slot to position the wires side by side, and means to close the slotted opening to confine the wires in the bore, whereby rotation of the gripping members about the axis of the wires will cause the wires to be gripped by the gripping members and intertwisted.

2. A tool for joining package wires by intertwisting comprising a twisting head bored and slotted to receive the wires to be joined, wire gripping members extending into the bore to position the wires side by side, and means to close the slotted opening to confine the wires in the bore, whereby rotation of the gripping members about the axis of the wires will cause the wires to be gripped and inter-twisted.

3. A tool for joining package wires by intertwisting comprising a twisting head bored and slotted to receive the wires to be joined, wire gripping members extending into the bore, means normally closing the slot and adapted to yield to permit the insertion of the wires and to close over the wires to confine them in the bore, whereby rotation of the gripping members about the axis of the wires will cause the wires to be gripped and intertwisted.

4. A tool for joining package wires comprising a twisting head having an opening along one side to receive the wires to be joined, gripping members to position the wires side by side in said opening, and yielding means permitting the insertion of the This presswires into the opening and confining them therein during rotation of the gripping memhere.

5. A tool for joining package wires comprising a twisting head to receive the wires to be joined, and gripping members located a distance from the nose of the head to grip and twist the wires upon rotation of said members; said head having a substantially circular nose comparatively narrow in cross section and tapering back to the body of the head, whereby, upon rotation of the head, the nose may be drawn at least partially under the body of one of the wires being twisted.

6. A tool for joining package binders by intertwisting comprising a twisting head bored and slotted to receive the binders to be joined, and a binder gripping member extending into the bore at either side of the slot to position the binders side by side.

7. A tool for joining a plurality of package binder ends extending in the same general direction from a package, comprising a twisting head slotted along one side to receive the binders to be joined, and means located in said slot to grip the binders upon rotation of the head and intertwist the binders be tween the package and the point of gripping and sever the binder ends upon completion of the twist; the head being free to move toward the package during a twisting operation whereby the twist will be drawn at least partially under one of the package binders.

8. A tool for joining a plurality of pack age binder ends extending in the same general direction from a package, comprising a twisting head slotted along one side to reccive the binders to be joined, gripping means located in said slot to grip the binders upon rotation of the head and intertwist the binders between the package and the point of gripping and sever the binder ends at the tip of the completed twist, and means to confine the binders in the slot during rotation otlf the head.

9. A tool for joining a plurality of pack age binder ends extending in the same general direction from a package, comprising a twisting head slotted along one side to receive the binders to be joined, and means located in said slot to grip the binders upon rotation of the head and intertwist the binders between the package and the point of gripping and sever the binder ends upon completion of the twist.

In testimony whereof, I have signed my name to this specification this 20th day of April, 1929. 1

ALFRED L. ROSENMUND. 

